| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 49 |
3.6%
|
| 2 | 5-6 days per week | 35 |
2.6%
|
| 3 | 3-4 days per week | 59 |
4.3%
|
| 4 | 1-2 days per week | 254 |
18.6%
|
| 5 | 1-3 days per month | 375 |
27.4%
|
| 6 | Less than once a month | 597 |
43.6%
|
| Sysmiss | 1293 |